Home / 15,127.09-20,874.98-8,413.29

Finding the Fourth Proportional to 15,127.09, 20,874.98 and 8,413.29

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Solution

The fourth proportional to 15,127.09, 20,874.98 and 8,413.29 is: 11,610.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,127.09 : 20,874.98 = 8,413.29 : x
  2. Step 2: Convert to fraction form
    15,127.09/20,874.98 = 8,413.29/x
  3. Step 3: Cross multiply
    15,127.09x = 20,874.98 × 8,413.29
  4. Step 4: Simplify right side
    15,127.09x = 175,627,281.52
  5. Step 5: Solve for x
    x = 175,627,281.52/15,127.09
  6. Step 6: Final answer
    x = 11,610.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.